Self Assessment Tax Returns · Wales
Self Assessment tax returns in Maesglase
We prepare and file Self Assessment returns for people in Maesglase entirely online, for a fee that is fixed before any work starts. Send your records by WhatsApp or email, review the draft we send back, and we file it with HMRC the same day you approve it. The price is the same in Maesglase as anywhere else in Wales, because there is no office to pay for.
from £129 · fixed, one-off
Next deadlines
- Online Self Assessment filing deadline and balancing payment due
- Second payment on account due
- Register for Self Assessment if you started self-employment or new untaxed income in the last tax year
- Paper Self Assessment return deadline
Who this is for
Self Assessment Tax Returns for Maesglase
Anyone in Maesglase who has been told to file a return: the self-employed, landlords with one or several properties, company directors taking dividends, people earning over £100,000 or repaying Child Benefit through the High Income charge, and those with capital gains, foreign income or untaxed savings interest to report.
What is included
Everything inside the fixed fee
- SA100 and every supplementary page you need (self-employment, UK property, dividends, capital gains, foreign income)
- A reconciliation against your HMRC personal tax account so nothing is missed or double counted
- Payments on account calculated and a one-page payment schedule sent to you
- Claims for allowable expenses, pension relief, Gift Aid and the trading allowance checked before filing
- Reminders at 60, 30 and 7 days before the 31 January deadline
- HMRC correspondence about the return we filed handled at no extra charge
How it works
Self Assessment Tax Returns from Maesglase, step by step
Tell us your situation
A short message or call about what you do and what needs filing. We ask the questions that determine the right package and nothing more.
Fixed fee in writing
You receive one price for the work, confirmed by email before anything starts. It does not change if the job takes longer than we expected.
Send records, review the draft
Records come by WhatsApp or email. We prepare the draft, explain the figures in plain English and answer your questions.
We file, you get the receipts
Once you approve and the fee is settled, we submit electronically and forward the HMRC or Companies House acknowledgement the same day.
Why IGI
Why Maesglase businesses file with IGI
The price for self assessment tax returns is published on this page and is what a client in Maesglase pays. We confirm it in writing first, and the invoice matches the quote.
Deadline-first: the dates that matter for self assessment tax returns are shown at the top of this page, diarised for every Maesglase client and chased before they arrive.
No appointments, no travel across Wales, no parking. Everything for self assessment tax returns in Maesglase happens online, with a real person on the other end during UK working hours.
You get one contact for self assessment tax returns, not a queue. Maesglase clients message the same person throughout and get an answer in working hours, usually within a few hours.
Plain English, with the numbers. Every draft for Maesglase comes with a short explanation of what the figures mean and what, if anything, you should do about them.
You stay in control of self assessment tax returns: drafts go to Maesglase clients first, with the figures explained, and nothing leaves us until you say so.
Local facts
About Maesglase
Maesglase is in Wales, Wales. Welsh taxpayers pay Welsh rates of income tax, set by the Senedd and currently matching the English bands, collected under a C-prefixed tax code. National Insurance, VAT and Corporation Tax are UK-wide. Property purchases in Wales pay Land Transaction Tax to the Welsh Revenue Authority rather than Stamp Duty, with its own bands and rates.
| Place | Distance | Direction |
|---|---|---|
| Cerist, Wales | 2 mi | NE |
| Gartheiniog | 2 mi | SW |
| Minllyn | 2 mi | E |
| Dinas Mawddwy | 2 mi | E |
| Hendre-ddu | 2 mi | SW |
| Dians Mawddwy | 2 mi | E |
| Camlan | 2 mi | SE |
| Mallwyd | 3 mi | SE |
Worth knowing
Rules that come up in this work
The Self Assessment calendar
Four dates govern Self Assessment: 5 October to register, 31 October for paper returns, 31 January to file online and pay, and 31 July for the second payment on account. Missing the January date triggers an automatic £100 penalty before any tax is even considered, so we treat it as the fixed point around which the rest of the year is planned.
Payments on account
A common surprise in Self Assessment is the January payment that is far larger than expected. That is the balancing payment for the year just ended plus the first payment on account for the year ahead, which HMRC sets at half of the bill just calculated. We put the figure in your hands months ahead and tell you how to adjust it legitimately when circumstances change.
Late filing penalties
HMRC's penalties for a late Self Assessment return are automatic: £100 the day after 31 January, £10 a day from three months late up to £900, then the greater of £300 or 5% of the tax at six and twelve months. Interest and separate late-payment penalties apply to the tax itself. Companies House charges £150 to £1,500 for late accounts, doubling for a second consecutive year.
Making Tax Digital for Income Tax
Making Tax Digital for Income Tax began in April 2026 for sole traders and landlords with qualifying income over £50,000, extends to those over £30,000 in April 2027 and is planned for £20,000 in April 2028. It requires digital records in compatible software and four quarterly updates to HMRC each year, with a final declaration replacing the traditional return. Payment dates are unchanged.
The VAT registration threshold
Watching the rolling twelve-month turnover figure is one of the quiet jobs of monthly bookkeeping, because the £90,000 VAT threshold arrives silently. Crossing it brings quarterly returns, Making Tax Digital software and a decision about schemes. Crossing it late brings a bill for VAT you could not recover from customers and a penalty for failing to notify.
Corporation Tax rates and marginal relief
Companies pay Corporation Tax at 19% on profits up to £50,000 and 25% on profits over £250,000. Between those figures marginal relief applies, producing an effective rate that rises gradually and a marginal rate of 26.5% on each pound in the band. The thresholds are divided by the number of associated companies, so a director with two companies has thresholds of £25,000 and £125,000 for each.
Salary versus dividends
Directors of their own companies usually take a salary at or just above the National Insurance thresholds, which keeps the year qualifying for State Pension and is deductible for Corporation Tax, with further income as dividends. Dividends above the £500 allowance are taxed at 10.75%, 35.75% and 39.35% by band and can only be paid from distributable profits after tax, with a minute and voucher each time.
Questions
Self Assessment Tax Returns questions from Maesglase
What does the £129 return cover?
A full SA100 with the supplementary pages for one income source, prepared, checked and filed online. Rental income, capital gains or several income sources move you to the £169 or £199 package, and we tell you which applies before we start, never on the invoice.
How quickly can you file once I send my records?
Most straightforward returns are drafted within five working days of receiving complete records and filed the day you approve. In January we prioritise by deadline risk and tell you your slot when you book, so late bookers are not left guessing.
I have never filed before. Do I need a UTR first?
Yes. If you have not registered we handle the registration as part of the job and HMRC posts your Unique Taxpayer Reference within about ten working days. Start early if your first deadline is close, because HMRC will not accept a return without it.
What if my return is late?
We file late returns at the £179 rescue fee, which includes drafting a reasonable-excuse appeal where the facts support one. The £100 automatic penalty is HMRC's, not ours, and we tell you honestly whether an appeal has a realistic chance before you pay for it.
Can you deal with HMRC on my behalf?
Once you authorise us as your agent we can speak to HMRC about your return, see your account and respond to letters about the return we filed. The authorisation is free, done through your Government Gateway or a code HMRC posts to you, and takes a few days to activate.
Do I pay before or after filing?
The fee is invoiced when you approve the draft, before we file. Nothing is submitted to HMRC until it is paid and you have confirmed every figure, and you receive HMRC's submission receipt within minutes of filing.
Which deadlines matter most for self assessment tax returns?
The next four dates that apply to self assessment tax returns are shown at the top of this page, calculated from today. For Maesglase clients we diarise every one of them from the day you join and send reminders before each, so the work is done in good time rather than in the last week before a penalty.
How do I get started from Maesglase?
Message us on WhatsApp or email with a sentence about your business and what you need. We reply in working hours with any questions and a fixed fee for self assessment tax returns. Once you confirm, we tell you exactly which records to send and the work begins. Most Maesglase clients are set up within a day.
One message from Maesglase, one fixed price
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.