einzly × TrustFIN

Tax return for sole proprietors. Fully automated.

einzly
Bookkeeping
Live
Revenue142'850Expenses23'410VAT11'571Profit119'440AHV11'944
Recorded517
Waiting for data...
Secure API
Tax expert
Live
Revenue142'850Expenses23'410VAT11'571Profit119'440AHV11'944
Received517
Waiting for data...

You handle the bookkeeping in einzly. TrustFIN files your tax return — directly from your data. No emailing receipts, no follow-up questions, no March panic.

Choose a packageHow it works

Tax experts for sole proprietors. Data stays in Switzerland.

Partners
Integrations

DIY tax return

You're leaving money
on the table every year.

Swiss tax law for sole proprietors is complex. If you don't know all the deductions, depreciation rules and allowances, you automatically pay too much.

01

What can you actually deduct?

Home office allowance, vehicle costs, meals, training, insurance, pillar 3a — the list is long. If you don't know it, you overpay.

02

Depreciation & private use

How much can you depreciate on a business vehicle? What's the private use share? Which equipment over which years? Get it wrong and the tax office corrects it.

03

VAT, AHV, input tax

Effective method or flat rate? Input tax deduction on private use? AHV advance correctly declared? One detail wrong costs you hundreds.

With einzly × TrustFIN, you get out what's actually in there.

TrustFIN knows every deduction, every depreciation, every Swiss specialty. einzly delivers the data. You save — legally and verifiably.

Classic
3 hours every month.
Collect receipts
Scan
Sort
Send email
Wait
Follow-up
Resend
Per month
~3 h
Year-end: stress, reminders, extra costs
einzly × TrustFIN
Set up once. Forget.
Auto sync active
Automatic · zero clicks
All data in real time
Accountant sees everything live
Per month
0 min
Year-end: tax return ready

Seamless data transfer

Your einzly data
becomes your tax return.

No upload. No export. No email attachment. TrustFIN gets exactly the data needed for your tax return via API — directly from your bookkeeping.

Income, expenses, receipts — all automatic
VAT + EAR ready at year-end
AHV payments pulled from expenses
Secure API — no emails, no dropboxes
einzly
SBB AG
Zurich Main Station
09.04.2026 · 14:27
GA 1st class
MWST 8.1%
CHF 590.00
Supplier...
Amount...
VAT...
Category...
Saved · Syncing
API
FIN. Dashboard
Idle
Expenses
23'410
+590
Receipts
287
+1
SBB AG
NEW
09.04.2026 · Travel expensesCHF 590.00
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What gets transferred

Everything your tax return
needs is already there.

TrustFIN automatically gets access to all tax-relevant data from your einzly bookkeeping. Nothing forgotten. Nothing manual.

Revenue

All invoices, direct income, payment methods and foreign currencies — including Stripe and TWINT transactions.

Expenses with receipts

Every expense with supplier, category, VAT rate and the scanned receipt attached.

ESTV

VAT statement

All ESTV figures quarterly or semi-annually — by effective method or flat rate.

Year-end closing

Income-expense statement with net profit, category breakdown and monthly overview.

AHV payments

Actual AHV contributions from your expenses — real numbers, not estimates.

Receipts & documents

All scanned receipts, invoices and documents as structured files — directly linked.

How it works

Tax return ready in 3 steps

Setup in 5 minutes. In March you only wait for the confirmation.

01

Bookkeeping in einzly

You record your business in einzly: invoices, expenses, receipts. Like you'd do anyway — just easier.

02

Connect TrustFIN

One click in settings: enable TrustFIN as your accountant. Enter your AHV number. Done.

03

Receive your tax return

In March you receive the completed tax return from TrustFIN — based on your einzly data. You only need to confirm.

Your tax partner

Who is TrustFIN?

TrustFIN GmbH is a Swiss tax expert for sole proprietors. They know every legal deduction, every depreciation rule and every allowance — and get out what's actually in there for you.

Maximize legal deductions

Home office allowance, vehicle deductions, pillar 3a, insurance — TrustFIN finds every franc you can deduct.

Correct depreciation & private use

Business car, computer, furniture — TrustFIN calculates depreciation and private use shares per Swiss law. No corrections from the tax office.

VAT, AHV, input tax handled

Effective method or flat rate? Optimize input tax deduction? TrustFIN decides what's cheapest for you.

Flat rate & free consultation

No hourly billing. You know upfront what it costs. Initial consultation no obligation, free.

Learn more about TrustFIN at trust-fin.ch

Packages

Flat rates. No surprises.

Once a year for TrustFIN. CHF 15 monthly for einzly. That's it.

einzly
CHF 15/ month
The accounting software
+
TrustFIN
CHF 280/ Jahr
Your accountant
Basic
CHF 280/ year

Tax return with automatic data sync from einzly. The essentials, fairly priced.

  • einzly auto-sync (all data live)
  • Sole proprietor tax return
  • Deadline extension included
  • Digital filing
Choose package
Total CHF 460/year
Most popular
Premium
CHF 1,180/ year

Personal consultation and complete tax representation — for self-employed who want everything from one source.

  • Everything in Basic (incl. auto-sync)
  • Personal consultation (SPOC)
  • Full tax representation
  • Free initial consultation
  • Priority support
Choose package
Total CHF 1,360/year
All-Inclusive
CHF 4,800/ year

Complete support with tax optimization and mid-year planning — all add-ons included.

  • Everything in Premium (incl. auto-sync)
  • Tax optimization strategy
  • Mid-year planning
  • Priority processing
  • No extra charges
Choose package
Total CHF 4,980/year
Compared to traditional accountants

Swiss accountants typically charge CHF 1,500 – 3,500 per year for a standard sole proprietor year-end statement. With einzly × TrustFIN you get more, for less — and without emailing receipts.

Questions

Frequently asked

What deductions does TrustFIN find for me?

How does depreciation and private use work?

Do I have to send my data to TrustFIN myself?

What if I currently do my own tax return?

Is there an extra cost for the API connection?

Does TrustFIN also optimize VAT?

How secure is my data?

Save taxes without stress.
Automated. Legal. Swiss quality.

Start with einzly and choose your TrustFIN package. You'll be set up in 5 minutes — and saving from the first year.

Try einzly freeView TrustFIN packages