Self Assessment Tax Returns — Fast, Accurate, Fixed‑Fee
We handle everything: tidy‑up, forms & schedules, HMRC filing — and we explain your bill and payments on account in plain English.
31 Oct
Paper filing deadline.
31 Jan
Online filing & tax payment.
31 Jul
2nd payment on account (if due).
5 Oct
Register for SA if you need to file.
Who must file a Self Assessment return?
Self‑employed
Sole traders and partners.
Landlords
Property income incl. holiday lets.
Capital gains
Share/crypto/property disposals.
Higher‑rate income
Savings/dividends above allowances.
Foreign income
Overseas income; residence/domicile.
Company directors
Where HMRC requires a return.
Benefits/child benefit
HICBC or benefit-in-kind.
Other triggers
Untaxed income, trusts, etc.
Which forms & schedules apply to you?
Main tax return — everyone files this core part. We attach the relevant schedules below.
Short (SA103S) or Full (SA103F) depending on size/complexity. Includes Class 2/4 NIC, capital allowances, overlap relief and home‑working costs.
UK property income; HMOs & furnished holiday lets; domestic items relief and finance cost restrictions considered.
Disposals of shares, cryptoassets and property. We apply share matching rules and attach schedules.
Foreign income, dividends and remittances; double tax relief claims.
Residence, split year and domicile pages where applicable.
Our 6‑step process
1) Onboard
Engagement & portal access.
2) Gather
Docs & data import.
3) Prepare
Compute income, reliefs, CGT.
4) Review
You e‑sign the pack.
5) File
HMRC electronic submission.
6) Aftercare
Payments & next steps.
Payments on account — should you be making them?
HMRC may ask for two advance payments toward next year’s bill (each typically half of the previous year’s tax and Class 4 NIC):
- 31 January — first payment on account (with any balancing payment for the prior year)
- 31 July — second payment on account
If your income has fallen or one‑off items inflated last year’s tax, we can claim a reduction to avoid overpaying — and we’ll show the effect on cash flow.
Budget with confidence
We provide a simple payment schedule and reminders.
Standard
SA100 + 1 schedule, computation, submission, payment guidance.
Plus (Popular)
SA100 + up to 3 schedules incl. CGT, PoA review.
Complex
Multiple properties, foreign income, complex CGT, residence/domicile.
What we need to get started
- UTR, NI number and basic personal details
- Employment P60/P45/P11D and pension statements
- Self‑employment income & expenses (or bookkeeping export)
- Property income & expenses; mortgage interest; FHL occupancy
- Bank/savings interest and dividend vouchers
- Capital gains details: contracts, broker/crypto reports
- Foreign income documents and tax paid overseas
- Any HMRC letters or prior year returns
Hassle‑free handover
Secure portal and e‑signing.
Self‑employment
SA103 with expenses and allowances.
Landlords
SA105 incl. finance cost restrictions.
Capital gains
SA108 calculation and schedules.