2025/26UK Self Assessment, document-first
Your tax return,handled.
Drop your documents in. TaxGo reads them, works out what's missing, calculates your tax and gets your Self Assessment ready for HMRC.
Your documents
0 of 4 analysed
P60_2026.pdf
Waiting
Dividend_Voucher.pdf
Waiting
Barclays_Interest.pdf
Waiting
IMG_2831.jpg
Waiting
Documents received. Starting…
01Why TaxGo
Doingyourtaxreturnshouldn'tfeellikedoingyourtaxreturn.
TaxGo starts with the documents you already have. We read them, organise the information and only ask about what's missing.
DROP
01 / 05
Drop it in.
P60, dividend voucher, bank statement. Any order. Any filename.
2025/26 return
Drop your documents here.
You don't need to organise them first.
02TaxDrop
Drop it in.
Don't organise it. Don't rename it. Just upload what you've got.
P60_2026.pdf
Dividend_Q4.pdf
CIS_March.pdf
Barclays.pdf
IMG_2831.jpg
Letting_stmt.pdf
GiftAid.png
P11D_2026.pdf
P60_2026.pdf
Dividend_Q4.pdf
CIS_March.pdf
Barclays.pdf
IMG_2831.jpg
Letting_stmt.pdf
GiftAid.png
P11D_2026.pdf
documents in → figures out
03Document analysis
We read theboring bits.
P60_2026.pdf · page 1
P60 End of Year Certificate
Tax year to
5 April 2026
Your return · 2025/26
Employment04Smart questions
No hundred-questiontax form.
If we already know it, we won't ask again.
TaxGo found:
We need 2 things.
Question 1 of 2
We found one P60 from ABC Consulting Ltd.
Was this your only employment?
Not sure?That's fine.
TaxGo helps you find the answer. You don't need to know tax to do your tax return.
How much did you personally contribute to your pension?
05Previous year
TaxGo remembers the structure.Not the assumptions.
2024/25
2025/26
You had rental income from 12 High Street last year. Did you still rent this property during 2025/26?
06Who we help
Who is TaxGo for?
What you upload
Your TaxGo return
07What we support
Straightforward tax?You're in the right place.
Supported
- Employment
- Company directors
- UK dividends
- Bank interest
- Pensions
- Pension contributions
- Gift Aid
- CIS
- Simple self-employment
- Simple UK property income
- Student loans
- Child Benefit
Not supported yet
- Cryptocurrency
- DeFi
- NFTs
- Complex foreign income
- Trusts
- Estates
- Complex capital gains
- Complex residence cases
If your return needs any of these, TaxGo tells you before you pay.
exchange_transactions_2025.csv
Uploading
08Common concerns · not testimonials
Self Assessment has a few problems.
Where's my P60?
What does this question even mean?
Did I already enter that?
Why does HMRC need this?
Is that gross or net?
TaxGo handles the boring bits.
09Tax calculation
The number youactually care about.
Estimated tax due · to pay
£0.00
TaxGo uses structured tax rules and your confirmed information to calculate your return. No guessing. Final figures depend on your completed and validated return.
Your income
+ £2,000 pension contributions extend your basic-rate band
Your tax
10Explainability
Every numberhas a source.
Tap any figure to see exactly where it came from.
Source
P60_2026.pdf · Page 1
P60 End of Year Certificate
Extracted, then confirmed by you. Edit it any time before you approve.
11Final checks
One last check.
0%
- Checking income
- Checking tax already paid
- Checking allowances
- Checking duplicate documents
- Checking missing information
- Comparing with last year
- Preparing calculation
12Review
Your return,laid out plainly.
Every section, every figure and where it came from — before anything is approved.
Self Assessment · 2025/26
5 of 5 completeSource: P60_2026.pdf
13Approve
Check it.Approve it.Done.
Your Self Assessment
Tax year
2025/26
Tax due
£4,746.25
Interactive preview
14How it works under the hood
AI reads.Tax rules calculate.
AI does
- Identifies documents
- Reads the values
- Spots what's missing
Structured tax rules do
- Validate every value
- Apply UK tax rules
- Build the return
- Calculate your tax
- Prepare it for HMRC
The calculation is deterministic: the same confirmed figures always give the same answer. AI never decides how much tax you owe.
15Security
Your tax documentsare personal.We treat them that way.
P60 End of Year Certificate
Employer ABC Consulting Ltd
Total pay 52,400.00
Tax deducted 9,280.00
NI number QQ 12 34 56 C
Private document storage
Your files sit in private storage only your account can reach.
Secure sign-in
Authenticated sessions, with no shared links to your documents.
Encrypted connections
Everything between you and TaxGo travels over HTTPS.
Strict access controls
Database rules lock every row to its owner.
Audit trail
Every change to your return is recorded.
Secure HMRC connection
Submissions use HMRC's own authorisation, where available.
16Pricing
One return.One price.
No tiers. No subscription. Nothing to pay until your return is ready.
per Self Assessment return
One-off payment. No upfront payment — you pay when your return is ready to approve.
- Document analysis
- Smart questions
- Tax calculation
- Return preparation
- Final review
- Ready-to-submit return
- Tax return PDF
- Tax calculation PDF
- Secure document storage
Why £49?
Straightforward returns shouldn't need hours of manual data entry.
- 01
Automated document reading
No hours of typing figures from your P60 into boxes.
- 02
Only relevant questions
If a question doesn't apply to you, you never see it.
- 03
Structured checks
Rules-based validation before you see a single number.
- 04
You review everything
Nothing is approved until you've checked it.
17Questions
Askedandanswered.
You upload your tax documents. TaxGo reads them, works out what's missing, asks you only about that, calculates your tax and prepares your Self Assessment for you to check and approve.
Your tax return isn't going to do itself.
Actually, TaxGo gets pretty close.