How to claim your SEIS tax relief

While the Seed Enterprise Investment Scheme (SEIS) gives incredible tax reliefs, you need to claim them in order to benefit. We'll show you how to do it.

Information you need to have

Company names that you invested into
Date on which the shares were issued to your name
Amounts you invested in each company
HMRC office that authorised the issue of the SEIS3 certificate

Where you can get this information

1. Your SEIS3 certificate

This document contains the key information needed for claiming your tax relief with your self assessment.

You will get this from the company you invested in. They'll be able to apply for one:

after they've been trading for 4 months
or when they've spent 70% of the invested money.

If you used an agency or a platform for your SEIS investments, then you should receive SEIS3 certificate from them.

2. Your Share Certificate

This is the document that proves you're a shareholder in the business.

You also get it from the company you invested in.

Things you need to do

First of all, keep in mind that you're only eligible for the CGT exemption if you keep the shares for 3 years.

When you're filing your annual income tax return you must claim the SEIS tax relief by filling in the "other tax reliefs" section on your Additional Information (SA101) page.

You'll need the enter the total amount invested into companies under SEIS:

Tax Return SEIS Amount

At the bottom of the page you'll need to provide the information listed at the top of this article at the additional information section:

Tax Return SEIS details

Alternatively, of course, you can use TaxScouts so we can sort all of this for for you.

How TaxScouts works

1. Simple online tax assessment

Our online tax-bot will go over your tax situation and will make sure you won’t overpay your taxes.

2. Chat to human advisors

You can talk to one of our tax assistants at any time during the process when you have any questions.

3. We’ll sort your documents online

We’ll tell you exactly what documents you need and sort them for you online. You just upload them or snap a picture with your phone.

4. Everything gets prepared for you

Your certified accountant will go over your details & prepare your tax return for you to review. It will be filed on your behalf once you approve it.

Get started

"Superb app, team & accountant"

They sorted everything for me. A pleasure to do taxes this way!

Henrik B

"Smooth and easy process"

Smooth and easy process. Will use every year! Very helpful staff as well!

Oliver James Windle

"Very fast"

Very fast and gave good advice I will be using every year

Wayne L

Who our service is for

First time tax filers

We have a simple online service that guides you through the entire process. Regardless of your reasons for doing your tax return we'll help you get it done right.

Construction workers

We'll prepare your self assessment and help to maximise your CIS tax refund. We have the lowest fees in the industry and you don't have to pay up front if you're eligible for a refund.

People living overseas

Our service allows people living abroad to prepare their income tax return online. We are able to process all returns regardless of your current country of residence.

Company directors

UK company directors are required to file their self assessment annually. TaxScouts handles this through a simple online process.

Landlords

Long Lets, Airbnb, Capital Gains. TaxScouts will sort out your self assessment and take away the worry of tracking all the recent tax changes.

Self-employed

TaxScouts ensures the self employed don't overpay on their taxes. We'll help you benefit from all the tax breaks and deductions that can be applied to your return.

And for everyone else who needs to do their self assessment

At TaxScouts we appreciate that tax returns are highly individual. Before you get assigned an accountant we make sure to understand your circumstances and help you build your optimal tax profile.