Summary
Overview
Work history
Education
Skills
Languages
Custom
Personal Information
Affiliations
Certification
References
Timeline
Generic

Gisela Castellon-Lewis

Kingston-Upon-Thames,Greater London

Summary

Detail-oriented accounting professional with extensive expertise in QuickBooks, Xero, Kashflow, and Sage Line 50 systems. Proficient in VAT preparation, account reconciliation, double-entry bookkeeping, and managing accounts payable and receivable. Skilled in supplier liaison, credit control, and bank reconciliations with intermediate proficiency in Excel, MS Word, and PowerPoint.

Overview

22
22
years of professional experience
8
8
years of post-secondary education
1
1
Certification

Work history

Accounts Assistant and Bookkeeper

Self-Employed
New Malden, Kingston upon Thames
03.2020 - 02.2025
  • Processed bi-weekly bookkeeping and payroll duties for accuracy
  • Managed customer relationships, processed invoices and facilitated payments
  • Reconciled all company accounts, including credit cards and month end duties, posting payroll journals and provided information to accountants
  • Monitored accounts payable and receivable statuses, keeping financial records up-to-date.

Assistant Accountant/ Payroll Administrator

TAXASSIST ACCOUNTANTS LTD
01.2012 - 11.2017
  • Company Overview: Now Kingston Burrowes Accountants
  • Practice Management including credit control, billing, and invoicing
  • Banking and reconciliation of practices bank accounts
  • Processing of VAT returns for Small/ Medium size corporate clients including bookkeeping of companies records
  • Processing company annual returns and Corporation Tax filings (IXBRL'S)
  • Payroll Management
  • Full responsibility for handling just over 100 client's payroll on a monthly/ weekly basis including RTI submissions to HMRC, P11D's and CIS monthly returns for Clients in the Construction Industry
  • Dealing with client queries and any issues that may arise in respect of VAT & PAYE
  • Now Kingston Burrowes Accountants

Accounts & Payroll Administration & Bookkeeper

THE DEVONSHIRE DEMENTIA CARE HOME
06.2015 - 08.2016
  • Accounts Management including credit control, billing, and invoicing
  • Banking and reconciliation of multiple bank accounts
  • General Bookkeeping and Payroll Preparation
  • Supplier Management & Payments

Senior Client Accountant

PRICOA RELOCATION UK
01.2005 - 03.2010
  • Company Overview: A wholly owned subsidiary of Prudential Financial
  • Acting as a main point of contact for clients and other departments within the company
  • Responsibility for a number of Tier 1 (blue-chip) client accounts including:
  • - Monthly cashbook reconciliations & weekly client reporting
  • - Client Invoicing, Maintaining both Purchase and Sales Ledgers
  • - Ad hoc Reports to Clients
  • - Supervision and coaching of team members
  • Ensuring a smooth running of the client portfolio including:
  • - Timely and accurate reporting of accounts and the monitoring of client funds
  • - Processing supplier invoices as agreed under the terms and conditions
  • - Liaising with clients and suppliers and relevant account managers by email, telephone
  • Understanding client policies and applying them stringently
  • Providing Client information in a timely manner
  • Attended and represented the company at meetings with clients when required
  • A wholly owned subsidiary of Prudential Financial

Management Accounts Assistant

REED MANAGED SERVICES
Raynes Park
03.2004 - 08.2004
  • Detailed reporting on a monthly and ad-hoc basis
  • Profit & Loss analysis
  • Dealing with Manager's & Directors queries monthly
  • Balance Sheet reconciliations
  • Publishing set of accounts
  • Running detailed Trial balances on oracle
  • Setting up clients cost centres
  • Cashbooks

Cash Allocation Administrator

REED CONNECTIONS
Raynes Park
09.2002 - 02.2004
  • Accounts Receivable:
  • Banking & receipting cheques received from clients
  • Dealing with large volume of BACS payments
  • Allocating cash received to ledger accounts
  • Running daily reconciliation reports
  • Liaising with Credit Control department
  • Dealing with customer queries
  • General administrative duties

Education

Level 2 & Level 3 Certificate in Bookkeeping - Bookkeeping

ICB – The Institute of Certified Bookkeepers
United Kingdom
10.2020 - 11.2024

ACCA - Part Qualified

London School of Business & Finance
City of London
03.2010 - 06.2011

BA (Hons) - Accounting and Finance

Kingston University
Kingston, Surrey
01.2000 - 01.2002

BA (Hons) - Accounting and Finance – 1st Year

Thames Valley University
Ealing, London
01.1999 - 01.2000

Skills

  • Proficiency in various accounting software
  • MS Office
  • Bank reconciliation & VAT preparation
  • Accounts Payable and Receivable (AP/AR)
  • Payroll data processing

Languages

Spanish
Native
English
Fluent

Custom

  • Reading
  • Painting
  • Theatre
  • Travel
  • Dancing

Personal Information

Nationality: British Citizen

Affiliations

  • Painting, exercising, reading comedy books, going out with friends

Certification

ICB Level 2 & Level 3 Certificate in Bookkeeping

References

References available upon request.

Timeline

Level 2 & Level 3 Certificate in Bookkeeping - Bookkeeping

ICB – The Institute of Certified Bookkeepers
10.2020 - 11.2024

Accounts Assistant and Bookkeeper

Self-Employed
03.2020 - 02.2025

Accounts & Payroll Administration & Bookkeeper

THE DEVONSHIRE DEMENTIA CARE HOME
06.2015 - 08.2016

Assistant Accountant/ Payroll Administrator

TAXASSIST ACCOUNTANTS LTD
01.2012 - 11.2017

ACCA - Part Qualified

London School of Business & Finance
03.2010 - 06.2011

Senior Client Accountant

PRICOA RELOCATION UK
01.2005 - 03.2010

Management Accounts Assistant

REED MANAGED SERVICES
03.2004 - 08.2004

Cash Allocation Administrator

REED CONNECTIONS
09.2002 - 02.2004

BA (Hons) - Accounting and Finance

Kingston University
01.2000 - 01.2002

BA (Hons) - Accounting and Finance – 1st Year

Thames Valley University
01.1999 - 01.2000

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Gisela Castellon-Lewis