Experts on

from £3 a month (software only)

Sage 50

from £20 a month (software only)


from £8 a month (software only)

And much more...

How we can help


Know that you and your employees will get paid correctly and on time.

COS Membership

70% off training courses, software assistance, work experience, possible job opportunities and more...


Our bookkeeping service can be tailored to suit your business needs. From Management Accountants to College Students; we have a huge range of experience levels.

Accounts Software Training

We provide accounts software training for a variety of packages which include but are not limited to Sage, Xero and FreeAgent.


Hi there! We’re COS Bookkeeping and we’re based in Urmston (Manchester). We specialise in simplifying those complicated terms you often find in HMRC letters that make companies start to panic. We help you to achieve organisational bliss when it comes to your accounts. We do this in a number of ways.
Maybe you need a special software like Xero, Sage 50 or Quickbooks? Maybe you need some training? Maybe you need a new member of staff? There are many ways in which we can help.

We also provide a membership scheme to support Bookkeepers and Accountants. Members receive 70% off training courses, software assistance, work experience and possible work placement. Our Membership service also provides discount on training, industry updates, an exclusive networking group and much more.

Upcoming Events

06/04/2020 Setting up Xero Payroll Webinar

Essential Xero payroll basics

07/04/2020 Xero Sales Invoicing Webinar

An introduction to Xero sales invoicing

08/04/2020 Running Xero Payroll Webinar

A comprehensive guide to Xero payroll

14/04/2020 Xero Purchase Ledger and Overview Webinar

An introduction to Xero

21/04/2020 Xero Bank Reconciliation

Get to grips with the Xero bank rec

View all events

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Feel in control of your business finances

Book a free consultation

Our Team


Karen Garrattley

Managing Director

Karen is the Queen of COS, she started the business way back in 1991. When she's not playing her guitar and Producing shows she's following up leads, trying new accounting packages, and being Captain to our ship.

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Diane Middleton


Diane is the keeper of the keys as our Financial Director. When she's not counting beans she loves nothing more than a nice walk in the countryside.

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Becky Vanden

Office and Digital Marketing Manager

When she's not geeking out at conventions or writing, Becky has a variety of responsibilities at COS. Whether that be tweeting, or planning events; no two days are the same.

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Ann Lavelle


Meet Ann: Bookkeeper by day, Barry Manilow fan by night. Ann began her journey with us as a COS member and has become a highly valued Consultant and Trainer in the COS Team.

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Latest news


Apr 6 / Posted by Rebekah Vanden

BeCOS Bookkeeping Matters – Spring 2020 ...

Welcome to our Spring newsletter. This quarter we’ll be sharing our top 5 tried and tested cloud accounting softwares. We also interviewed Rik Heap from Leonard Curtis for his advice on rescuing and recovering businesses. Plus read about our new staff achievements and meet our new apprentice. We also now have a dedicated Coronavirus support and […]

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Apr 2 / Posted by Rebekah Vanden

Coronavirus Support and Advice Page

Considering laying off your staff?   Instead you can furlough them.  Tell your employee(s) they will be furloughed. You can pay them their normal salary or 80%. You will receive 80% back from the government at some point (up to a maximum of £2,500 per employee, per month). There is no obligation for you to […]

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Dec 13 / Posted by Rebekah Vanden

BeCOS Bookkeeping Matters – Winter 2019 ...

Welcome to our Winter Newsletter. This quarter we’ll be sharing how you could improve your cash flow. Plus we interview Amanda Fearn from WPA about how to support your employees with their health. COS Crew News What have our staff been getting up to this quarter? Find out here. *** Ann gets festive on her […]

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Nov 20 / Posted by Rebekah Vanden

5 Reasons why we’re proud of our Bookkeepers – ...

It’s Global Bookkeeping Week so we are taking this opportunity to shout about how proud we are of our members and employees. There are far more than 5 reasons why we’re proud of our bookkeepers! But we couldn’t very well name them all on here, it would be a long read indeed. 1. They have […]

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Oct 23 / Posted by Rebekah Vanden

BeCOS Bookkeeping Matters – Autumn 2019

Welcome to our Autumn newsletter! This quarter we tell you how we said goodbye to expense claims and how you can do the same. We also interviewed local pet expert Carys Middleton from Mojo Pet Companies. She shares her tips and business advice with us. Plus we have weddings, engagements, and births to announce! We’ve […]

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Jul 1 / Posted by Rebekah Vanden

BeCOS Bookkeeping Matters – Summer 2019 ...

In this edition, we’ll be helping you decide if you’re using the right accounting software. We will also be sharing some health and safety advice from Luke at Orchard Compliance. Plus lots of exciting news from the COS crew (including an upcoming wedding). COS Crew News – Summer 2019 Find out below what staff and members […]

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We do both. For 1-2-1's please email For classroom please visit:

Yes, we have a range of cost effective options. Xero, Sage and FreeAgent are all affordable. Xero starts at as little as £2 a month. For more details contact

That depends on what your requirements are. We can do a free consultation and recommend an appropriate software. Contact

What people say about us

“Ann’s training was fantastic.  She was really patient with Mark and I and our questions and the whole session was really well done.”

“Just wanted to feedback on how much we are enjoying working with Jackie, she’s a lovely person, really professional and a credit to your company. Jackie has taken away so many of our stresses and concerns regards the accounts side and we are really grateful.”

“It’s a great company you have, seriously!!

“I always seem to think it is in such a mess […] but it never seems to phase you and as always you breeze through sorting it out and putting things where they should be and making it easier for me moving forward. As always it’s great to see you and I am truly grateful for your help and advice.”

“As a start-up company, things are fairly manic, and as part-time FD I inherited a somewhat rough and ready set of accounts. Ann has been a great help in sorting through this and getting some sort of order around things, particularly with regard to our VAT reporting. Her knowledge of the product and ability to help work through some of our issues is impressive.”

“I found it informative, really helpful and of course delivered expertly!”

Let us relieve the stress, contact us today

Know that your payroll is in good hands

Send a message or call on 0161 850 3355 to see how we can help you
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