Nothing typed twice
The quotation becomes the invoice, the invoice becomes the booking and the bank statement settles it. One set of data, from the first line to the VAT return.
TWT One
One platform.Every business process.
The complete solution for small and medium-sized businesses: sales, purchasing, bookkeeping, bank and projects in one system.
The quotation becomes the invoice, the bank statement closes it, and the journal and the advance VAT return follow. Hours become invoice lines, supplier invoices arrive checked, and receipts are photographed and read. One system, one login, one price: in the browser, on the tablet and as an app.
- 30 days to test
- Cancel monthly
- One system, one login
- Hosted in Germany
39,90 € per month, net, plus VAT
30 days to test: cancel within them and you pay nothing; if you continue, the trial month is charged with the first month. Cancel monthly.The trial is available once per customer.
- Quotation acceptedA-2026-0024 · €5,800.00
- Bank statement read10 of 12 matched
- VAT payable, 2026€2,707.07
Why TWT One
Connected, clear and by the rules.
Everything at a glance
The overview shows what needs doing: supplier invoices to approve, bank movements to decide, the cash discount about to expire and the VAT position of the year.
By the rules
E-invoices to EN 16931, invoice numbers without gaps, invoices and entries locked once issued or booked, and a VAT return checked with ELSTER's own library.
Features
Everything your business runs on.
With TWT One you write quotations and invoices, receive supplier invoices, keep your books, match your bank statement, record project hours and read your figures. All features clearly organised in one place.
Quotations and invoices
- The accepted quotation becomes the invoice
- E-invoices as XRechnung and ZUGFeRD
- Recurring invoices, weekly to yearly
- Your own layout in the designer
Purchasing and receipts
- Supplier invoices by e-mail or upload
- Checked against EN 16931 on arrival
- Approval by the right person, with limits
- Receipts photographed and read
Bookkeeping and taxes
- Journal on SKR03 or SKR04
- Invoices booked in one step
- Advance VAT return, checked with ELSTER
- DATEV export and GoBD export
Bank and payments
- CAMT.053, MT940 and CSV
- Matched to your invoices automatically
- Payment terms with Skonto, and dunning
- Payment runs as a SEPA file
Projects and time
- Hours per project, person and activity
- The clock on site, or entries by hand
- Open hours become invoice lines
- Budget used, in hours and in euros
Reports
- BWA in the DATEV form
- Profit and loss or EÜR
- Totals and balances list, account ledger
- Revenue, payment behaviour and cash flow
All 49 features in detail
DashboardDashboard
What needs doing today and the figures behind it, cut to your package: invoices, supplier invoices awaiting approval, hours and projects, or the books. Plus a guided first-run checklist.
DashboardMy tasks
Everything waiting for you in one list: documents to approve, versions to read and confirm, the reviews and deadlines of your documents, your supplier invoices and your quality tasks, the overdue ones first.
SalesQuotations
Quotation, order confirmation and delivery note in one chain — each turns into the next with one click, each on its own number circle.
SalesInvoices
Draft to finalized, line items with per-line VAT and UN/ECE units, signature capture, QR code, duplicate and bulk actions.
SalesRecurring
The same invoice, every month, written once. Weekly to yearly, ending on a date or after a count. Either as a draft for approval, or issued and sent automatically — with the number sequence staying gapless.
SalesE-Invoice
E-invoices to the German standard: generate, convert, read and validate ZUGFeRD and XRechnung against EN 16931.
SalesCustomers
Buyer master data including VAT ID, flowing straight into the e-invoice as BT-48.
SalesPayment Terms
Agree your terms once and choose them on every document. Several discount levels — 3 % within 7 days, 2 % within 14, net 30 — with the deadlines and the amount to pay worked out for you.
SalesReminders
Up to three reminder stages with their own deadlines and fees. Default interest under § 288 BGB — nine points over the base rate against a business, five against a private person, day-exact and calculated separately across each interest period. Plus the 40-euro flat charge where it is due.
PurchasingIncoming invoices
Receive, check and approve your suppliers’ invoices — a photograph, a PDF or an XRechnung, all in the same inbox. Being able to receive them has been obligatory since 2025; issuing them only from 2027.
PurchasingSuppliers
Your creditors with their account mapping and every bank account they have ever invoiced from — what makes the changed-IBAN warning possible.
AccountingAccounting settings
Profit determination (balance sheet or EÜR), the VAT scheme (Soll- or Istversteuerung under § 20 UStG), the fiscal year and the chart of accounts. Set once, and every posting and report follows them.
AccountingChart of accounts
The complete DATEV SKR03 and SKR04 chart of accounts. The revenue account you pick decides both the VAT rate and the EN 16931 category.
AccountingBookkeeping
Every document becomes a double-entry booking. The VAT return, the open items list and a DATEV posting batch all fall out of the journal.
AccountingELSTER
The advance VAT return and the income surplus calculation (Anlage EÜR with its asset register AVEÜR) from your bookings: calculated, checked twice and validated with ELSTER's own library, with the protocol and a complete history.
AccountingOpen Items
Receivables and payables in one working list: filter the way accountants expect, spread one bank transfer across several invoices, offset credits, write off cent differences with the correct VAT adjustment.
AccountingPayments
The payment proposal knows the last day a cash discount can still be taken; a selection becomes a payment run with separate approval and a SEPA file (pain.001) for your bank.
AccountingBanking
Import CAMT.053, MT940 or CSV from your bank; a matching transaction marks the invoice paid and settles the booking behind it.
AccountingAssets
Capitalise what you buy and let it depreciate itself. Straight line or declining, GWG and Sammelposten included, with the asset movement schedule your adviser asks for at year end.
AccountingCash book
Cash recorded the way cash behaves: written forward, never edited, and never below zero. With cash counts and the cash report, and with bookkeeping one-click posting into the journal.
ReportsReports
Business analysis (DATEV form 01), P&L/cash-basis, trial balance with account ledger, VAT return with box numbers, revenue, payment behaviour, order backlog, cash flow, cash discount and per-partner account statements — as CSV, PDF or print view.
ProjectsTime tracking
Record hours with the timer while you work, or by hand afterwards. The rate comes automatically from the activity or the project and then stays on the entry, so a later price rise does not re-price weeks already worked. Open hours become an invoice at the press of a button.
ProjectsProjects
What is being worked on, with its customer, rate and budget. The analysis shows per project what has been earned, what has been billed and — the figure that matters — what has not. Internal projects with no customer belong here too: not every hour is sellable, but every hour wants to be seen.
ProductsCatalog
Products and services in one item master with unit, price, VAT rate, SKU and sector.
ProductsStock
The quantity on hand per article with a minimum level and a storage location; what is below its level stands at the top.
ProductsStock movements
Every change as an entry with date, quantity and reason: goods received, sold from the invoice, returned, corrected, counted.
ProductsInventory count
Count, see the system quantity and the difference, complete — the stock is set to what was counted.
DocumentsScan
Five-step wizard: capture, adjust, process, review, export — a photographed receipt becomes a compliant e-invoice.
DocumentsDocuments by email
Your own address for supplier invoices. Hand it out, or forward your existing mailbox to it — what arrives is read, checked and approved like a document you uploaded. With a sender list, format and size limits, and a log that names the refused messages too, so no supplier is left sending into nothing.
DocumentsDocument archive
Your company's digital memory: invoices, contracts, purchase orders, delivery notes, insurance policies, tax notices and correspondence in one place. Every document is read (text layer or OCR), its fields are prefilled, it gets a type, a category, a folder and tags, a deadline with a reminder, versions and an approval status — and the full-text search finds it by a word on page seven. Incoming invoices, journal entries, bank movements and assets link to the one document instead of copying it.
DocumentsContracts
Every contract at a glance, sorted by the day the notice must have arrived: term, notice period, renewal and monthly cost. The reminder comes before every notice day, also when a contract has renewed itself.
DesignTemplates
Template library — duplicate, publish, set a default, mark a company-neutral standard.
DesignInvoice → Template
Upload an existing invoice PDF and get back an editable layout, plus detected customer, logo and company.
DesignDesigner
Drag-and-drop PDF editor with tables, totals, QR code, barcode, signature, data fields and undo/redo — without any programming knowledge.
DesignEmail templates
The covering note your invoice arrives with — in your words, not ours. A designer with formatting, colors, tables and placeholder chips, for eleven kinds of mail in German and English, with a signature and attachment rules. One template can serve several document types at once, individual customers can have their own, and each person can set a personal default. The preview shows what will be sent, the test mail sends it to you first, the history keeps every earlier state, and a misspelled placeholder is refused at save rather than printed at your customer. The send log records what actually went out — including what did not arrive.
AdministrationCompanies
Full legal profile: register data, tax numbers, banking, branding and § 19 UStG small-business mode.
AdministrationUser Management
Invitations, access levels, per-user permission overrides and ownership transfer.
AdministrationTax advisor
Who, besides your own people, may reach your data. A practice asks, you decide, and you can withdraw the access at any time — your own users are untouched.
AdministrationImport data
Switch without retyping: customers, suppliers, the catalogue and your open items from a CSV file, as sevdesk, Lexware Office, Papierkram and Excel export them. Semicolons, umlauts and German numbers are recognised and the columns map themselves — with a dry run first and all-or-nothing on the way in.
AdministrationNumbering
Four independent number circles — invoices, quotations, order confirmations, delivery notes — each with prefix, format, padding and a yearly or monthly reset, with a live preview.
AdministrationTwo-factor requirement
Whether a second factor stays voluntary, is required of everyone, or only of the access levels that can move money. Setting one up stays on each person’s own profile, and that page stays reachable so nobody is locked away from the requirement they have to meet.
AdministrationBilling
Plan and single-module subscriptions paid by card — the payment itself switches the module on.
AdministrationTWT invoices
Every invoice from TWT in one place, across all modules, with the payment status per module and each invoice as a PDF.
AdministrationCancellation
Contract, end of term and cancellation in one place. Paid time stays usable to the end of the period, and the cancellation can be withdrawn until then.
AdministrationAudit Logs
21 action types across 21 entity types, filterable and CSV-exportable, surviving deletion.
AdministrationGoBD export
The tax-audit data handover: journal, booking lines, master data, documents, payments, assets and the hash-chained audit log in one ZIP with an index.xml that IDEA-style audit software imports directly.
AdministrationIntegrations
API keys and webhooks: other systems read and write through the same interface the portal uses, with the same permissions — and get told when something happens.
AdministrationSupport
Help from inside the product: ask a question, attach a screenshot, read the answer in the same thread. Each person sees only their own requests.
AdministrationNotifications
Where the product writes to: e-mail, Telegram or WhatsApp — one set for the company, and one of their own for each person. With a test message, so a wrong number is caught at once instead of staying silent.
How it works
From the quotation to the books
Real screens from TWT One with example data: a heating and plumbing business, one system from the quotation to the VAT return, step by step.
01 Quotations
The quotation becomes the invoice.
- Quotation, order confirmation and delivery note in one chain
- Validity, amount and status at a glance
- Nothing typed twice
02 Invoices
Every invoice also as an e-invoice.
- E-invoice to EN 16931
- Payment terms with Skonto, and dunning
- Recurring invoices, written once
03 Bank
The payment finds its invoice.
- CAMT.053, MT940 or CSV
- Supplier payments matched too
- Confirmed on the phone as well
04 Bookkeeping
The journal and the VAT return follow.
- Every entry with debit, credit and VAT
- Locked once booked, corrected by reversal
- VAT return checked with ELSTER's own library
Purchasing
The supplier invoice, checked before you pay
Supplier e-invoices arrive by e-mail or upload, are read into their fields and checked against EN 16931. A bank account the supplier has not used before is flagged, and the invoice goes to the right person for approval.
- 01
Sales
From the quotation to the invoice
- 02
Bank
Payments matched to their invoices
- 03
Purchasing
Supplier invoices checked and approved
- 04
Books
Journal, VAT return and DATEV
Who it is for
For businesses that want everything in one system.
Trades
Quotation, job, hours and invoice, and the books behind them, without a second program.
Service companies
Recurring invoices for the regular work, reminders for late payers, and the bank statement matched to both.
Agencies and consultants
Hours per project and person, invoiced by activity, and what every project has earned.
Small and medium-sized businesses
Several people in one system, each with their own rights: one writes the invoice, one issues it, one books it.
Growing businesses
Start with invoices and use the books, projects and purchasing when you need them, with no second system and no data to move.
Requirements
E-invoicing and the rules for your books in view.
TWT One supports you with the requirements for invoices, receipts and bookkeeping in Germany.
E-invoice receipt
Since 2025 every business in Germany must be able to receive e-invoices. XRechnung and ZUGFeRD arrive in your inbox, checked against EN 16931.
E-invoices you send
From 2027 businesses with more than €800,000 turnover must send e-invoices, from 2028 every business. TWT One writes XRechnung and ZUGFeRD today.
Unchangeable once issued or booked
An issued invoice is numbered without gaps and locked, and so is a booked entry, as the GoBD require. A correction is a cancellation invoice or a reversal that refers to the original, never a deletion.
Advance VAT return
The figures of the official form, computed from your booked documents per month or quarter and checked with ELSTER's own library.
TWT One provides functions for proper invoices, records and bookkeeping. The tax obligations of your business remain yours; when in doubt, ask your tax adviser.
Devices
Your business, wherever you are.
TWT One runs in your browser on every computer and tablet, and as a native app on Android.
Smartphone
The TWT One app for Android: quotations and invoices, supplier invoices, the journal, the bank, the cash book, the hours and the receipt scanner on the move. The app for iPhone and iPad is in preparation.
Tablet
In the browser, with the whole portal: the overview, the books and the reports.
Browser
On your computer or laptop, with nothing to install.
Getting started
Ready in a few steps.
Sign up, enter your company, choose SKR03 or SKR04 and bring in your customers, suppliers, catalogue and open items from a CSV file.
25 common payment terms and a standard invoice template are already set up.
If you have questions, our support team helps you personally.
Get started- Sign upChoose TWT One and test it for 30 days without obligation.
- Set upYour company, your chart of accounts and your bank account.
- Get goingSend the first invoice and read the first bank statement.
Pricing
One system, one price.
Included
- Quotations, invoices and e-invoices
- Supplier invoices and receipt scanner
- Bookkeeping, VAT return and DATEV export
- Banking with payment matching
- Projects, time tracking and reports
- 30 days to test without obligation
A closer look
For those who want to know exactly
The bank matching in detail, the hours of every job, the reports your tax adviser expects and the rights of every single person.
Learn more
Payment and books The bank statement closes the invoice
Import what your online banking exports — CAMT.053, MT940 or a German CSV. A transaction whose amount and invoice number agree is matched automatically; confirming it marks the invoice paid and settles the booking behind it, which clears it from the open items.
- No bank connection and no aggregator — you upload the file
- Reference matching ignores separators: RE 2026-0006 and 20260006 both hit
- Debits reconcile supplier payments the same way
- Matched automatically10 of 12 movements, confirmed
- Left to decideTax office €1,284.00 · insurance €312.40
Time tracking and projects Bill hours, not just items
Anyone selling their work by the hour usually keeps the hours in a spreadsheet — and that spreadsheet is then really where the invoice comes from. Here the two belong together: recorded time becomes an invoice line without anybody retyping anything.
- A timer for the work happening now, a typed entry for yesterday's
- The rate from the activity or the project — and frozen after that
- Open hours into an invoice, grouped by project, activity or person — every hour exactly once
- Hours in September12 entries · 2 fitters · 4 projects
- Every hour with its valueBadsanierung 2. OG · 3:00 · €216.00
Reports Figures your tax adviser recognises at first glance
Ten reports on two bases — booked entries and issued invoices. Every header states what the numbers rest on, and every export carries it along.
- Business analysis following DATEV form 01, with % column and previous-year comparison
- From the trial balance straight into the account ledger of every posting
- VAT return with the official form's box numbers — monthly or quarterly
- Revenue 2026€30,491.40 net · 10 invoices
- On issued invoicesEvery report names its basis
Access Control A real ACL, not role labels
More than 130 permission keys, organised as a module → component → action tree. Every member starts with the rights of their role; on top of it you grant or withhold single rights for exactly that person, and a withheld right always wins.
- One key gates the API, the menu and the route
- Modules you cannot reach never ship their JavaScript
- Changes apply on the user's very next navigation
Company Role: Power User· 83 from the role83/140
- Invoices+1−19/12
- List
- View
- Create
- Edit
- Delete
- Finalize− withheld
- Grant a cash discount after the deadline+ granted
- Export
- Custom PDF
- Recurring invoices
- List
- Create
- Edit
- Delete
- User Management0/6
- List
- Invite
- Edit
- Remove
- Teams
- List
- Manage
- Bookkeeping2/9
- Projects and time tracking7/10
- Withheld for this personInvoices · Finalize
- Granted to this personInvoices · Grant a cash discount after the deadline
FAQ
Frequently asked questions
What does TWT One include?
Sales, purchasing, bookkeeping, banking, projects and documents in one system: quotations and invoices with e-invoicing, supplier invoices with approval, the journal with the VAT return, bank matching, time tracking, the receipt scanner, the designer and the reports. Every module is listed on this page under Features.
Is a cash register included?
No. The till for your shop is TWT Kasse, a product of its own that we set up together with you. The cash book for your petty cash is part of TWT One.
Can I send and receive e-invoices?
Yes. Every invoice can be issued as XRechnung or ZUGFeRD according to EN 16931. Supplier e-invoices arrive by e-mail or upload, are checked against EN 16931 and go to the right person for approval.
How does my bank statement get in?
Export the statement from your online banking as CAMT.053, MT940 or CSV and upload it. A movement whose amount and invoice number fit is matched to the invoice; you confirm it, and the invoice is settled.
Can I prepare the advance VAT return?
Yes. TWT One computes it from your booked documents with the figures of the official form, per month or per quarter, and checks it with ELSTER's own library.
Can my tax adviser work with the data?
Yes. The DATEV export hands over every posting batch with the master data, and the reports follow the forms your tax adviser knows, such as the BWA. For a tax audit, the GoBD export hands over your books in the tax authority's own format.
Can several people work in TWT One?
Yes. Three users are included in the price and more can be added; the pricing page shows what a further user costs. Each person has an access level, and on top of it you grant or withhold single rights for exactly that person, for example writing invoices without issuing them.
Can I test TWT One before I pay?
Yes. You test it for 30 days: cancel within them and you pay nothing. If you continue, the trial month is charged together with the first month; after that you pay the monthly price, with no setup fee, and you can cancel monthly.
Ready for TWT One?
30 days to test: cancel within them and you pay nothing. Then cancel monthly, with no setup fee. Your data stays on our own servers in Germany.