Addition replaces the traditional accountant model with a modern financial ecosystem.
Our team of finance experts work inside your business, powered by our proprietary software, giving you clear numbers, less admin, and confident decisions all without the overhead of hiring in-house.
.png)
.png)
A fractional Finance Lead inside your business who takes full ownership of the day-to-day, backed by Addition’s expert team and software.
.png)
CFO-level expertise and experience without the hefty price tag. Our CFO plan gives you a seasoned pro to advise and help achieve your growth goals.
.png)
A fixed-fee, fast-turnaround package that gets your financials, pitch deck, and compliance investor-ready in weeks - not months.
.png)
If you're building an innovative business in the UK or US
(a product, a system, a way of doing things), then you might be owed tax credits.
.png)
We provide accurate, HMRC-compliant valuations to support option grants and ensure your scheme is set up on solid financial ground.
.png)
We’ll handle your ERS Annual Return from start to finish, ensuring everything is filed accurately and on time so you can focus on running your business.
.png)
We’ll prepare and submit your SEIS/EIS Advanced Assurance application to HMRC, making sure your business qualifies and giving investors the certainty they need to commit.
.png)
We take care of payroll, payments, and compliance so your team gets paid accurately and on time - in one click. Perfect for growing teams that want smooth, reliable operations.
.png)
Not everything fits neatly into a package - and that’s okay. If it’s finance or accounting related, chances are we can help.
Get in touch and let’s figure it out together.
Custom-built for transaction-heavy businesses, our financial management software automates bookkeeping and reporting, giving you real-time visibility and control without the manual drain.
AI-powered transaction categorisation syncs with your POS and bank in the background, so your books are updated in real-time.
.png){kind=icon}
Snap or upload invoices, and Addition logs and categorises them automatically, no more month-end paper chases.
.png){kind=icon}
Get a clear, live view of your cash flow, expenses, and margins, so you can make fast, confident decisions during busy periods.
.png){kind=icon}
No need to change how you work. Addition plugs straight into your existing tools, so your numbers stay in sync automatically.
.png){kind=icon}
Run payroll and pay suppliers in just a few clicks. Keep staff and suppliers happy, without drowning in admin.
.png){kind=icon}
From funding prep to quick reviews, get fast answers and strategic guidance without the overhead of a full-time hire.
