Generated by Rank Math SEO, this is an llms.txt file designed to help LLMs better understand and index this website. # Glasscubes: For accountants who need client answers 5x faster ## Sitemaps [XML Sitemap](https://www.glasscubes.com/sitemap_index.xml): Includes all crawlable and indexable pages. ## Pages - [How Fiscari finds and cites its sources](https://www.glasscubes.com/fiscari/methodology/): In short: Fiscari answers UK tax questions only from UK government sources, cites the source for every claim, and declines to answer when it can’t find one, without charging for the refusal. - [AI that checks client documents for what is missing](https://www.glasscubes.com/features/ai-document-checking/): Uploads read and matched against last year's list, with the client asked about anything still missing. - [Client document upload without a login](https://www.glasscubes.com/features/client-upload-links/): Clients open a secure link and upload straight away: no account, no password, no app. - [Automatic client reminders for accountants](https://www.glasscubes.com/features/automatic-client-reminders/): Email and text reminders before and after the due date, on a schedule you set, that stop when the client is done. - [Glasscubes features](https://www.glasscubes.com/features/): What Glasscubes does for UK accounting firms collecting information from clients: reminders that chase for you, upload links clients can open without a login, and AI that checks what they send. - [VAT Flat Rate Scheme: the limited cost trader test](https://www.glasscubes.com/fiscari/answers/vat-flat-rate-limited-cost-trader/): When the 16.5% rate applies, what counts as relevant goods, and what does not. - [Private residence relief: final period and lettings relief](https://www.glasscubes.com/fiscari/answers/private-residence-relief-final-period/): The final-period exemption by disposal date, the 36-month extension, and lettings relief after April 2020. - [Trivial benefits: the £50 rule and the £300 director cap](https://www.glasscubes.com/fiscari/answers/trivial-benefits/): The four conditions in ITEPA 2003 s323A, and how the annual cap works for directors of close companies. - [Salaried member rules for LLPs: the three conditions](https://www.glasscubes.com/fiscari/answers/salaried-members-llp/): Conditions A, B and C under ITTOIA 2005, and what the Supreme Court decided in BlueCrest about significant influence. - [Working from home tax relief 2026-27: who can still claim](https://www.glasscubes.com/fiscari/answers/working-from-home-tax-relief/): The employee deduction ended on 6 April 2026. What employers can still pay tax-free, and the self-employed flat rates. - [UK tax answers, cited to the source](https://www.glasscubes.com/fiscari/answers/): Worked answers to questions UK accountants ask, each grounded in legislation, HMRC manuals and case law, with every source linked. This is how Fiscari answers: cited to the paragraph, or not at all. - [How UK tax research tools differ (2026)](https://www.glasscubes.com/guides/uk-tax-research-landscape/): Commentary libraries, AI-native tools and general AI: what each is grounded in, and four questions to ask any vendor. - [MTD for Income Tax software compared for accountants (2026)](https://www.glasscubes.com/guides/mtd-itsa-software-compared/): Bookkeeping, bridging and tax-return software side by side: what each files to HMRC, and published prices. - [MTD for Income Tax deadlines for 2026-27](https://www.glasscubes.com/guides/mtd-itsa-deadlines/): Every quarterly update and tax return date for 2026-27, standard and calendar quarters, and the penalty position. - [Guides for UK accountants](https://www.glasscubes.com/guides/): Practical, answer-first guides for UK accounting firms: Making Tax Digital for Income Tax, choosing software, and how the tools compare. Each one is checked against HMRC’s own guidance or the vendors’ published material and dated. - [How Fiscari compares](https://www.glasscubes.com/fiscari-comparison/) - [Glasscubes vs Suralink](https://www.glasscubes.com/alternatives/suralink/) - [Glasscubes vs Content Snare](https://www.glasscubes.com/alternatives/content-snare/) - [Glasscubes vs Karbon](https://www.glasscubes.com/alternatives/karbon/) - [Glasscubes vs TaxDome](https://www.glasscubes.com/alternatives/taxdome/) - [Fiscari vs ChatGPT](https://www.glasscubes.com/alternatives/chatgpt/) - [Fiscari vs Thomson Reuters Checkpoint](https://www.glasscubes.com/alternatives/thomson-reuters-checkpoint/) - [Fiscari vs Blue J](https://www.glasscubes.com/alternatives/blue-j/) - [Fiscari vs Croner-i](https://www.glasscubes.com/alternatives/croner-i/) - [Fiscari vs Tolley](https://www.glasscubes.com/alternatives/tolley/) - [Compare Glasscubes and Fiscari](https://www.glasscubes.com/alternatives/): Honest, side-by-side comparisons of Glasscubes and Fiscari against the tools UK accountants weigh them against — where we are stronger, where we are not, and who should choose what. Every claim about another product comes from that vendor’s own published material. For a wider view, see the best client portals for UK accountants. - [Fiscari](https://www.glasscubes.com/fiscari/) - [Client Portal](https://www.glasscubes.com/client-portal/) - [Terms of Service](https://www.glasscubes.com/terms-of-service/): Welcome to Glasscubes! These terms of service (“Terms”), together with the other documents referred to govern your access to and use of the Services (as defined below). Please read these Terms carefully before continuing to use the Services. - [Security](https://www.glasscubes.com/security/) - [Contact](https://www.glasscubes.com/contact/) - [walkthrough](https://www.glasscubes.com/walkthrough/) - [AI Assist](https://www.glasscubes.com/ai-assist/) - [Making Tax Digital](https://www.glasscubes.com/mtd/) - [Customer Support](https://www.glasscubes.com/customer-support/): We pride ourselves on how user-friendly and intuitive Glasscubes is to use. There is no expertise or training required. If you need help there are several options available to you. - [Privacy Policy](https://www.glasscubes.com/privacy-policy/): Glasscubes Limited ("we", “us”) are committed to protecting and respecting your privacy and personal data. - [Blog](https://www.glasscubes.com/blog/) - [Pricing](https://www.glasscubes.com/pricing/) - [explainervideo](https://www.glasscubes.com/explainervideo/) - [Book a Demo](https://www.glasscubes.com/demo/) - [Payroll](https://www.glasscubes.com/payroll/) - [Audit](https://www.glasscubes.com/audit/) - [Personal Tax](https://www.glasscubes.com/personaltax/) - [Management](https://www.glasscubes.com/management/) - [Client Portal for Accountants UK | AI-Powered | Glasscubes](https://www.glasscubes.com/) ## Categories - [Audit/Accounts](https://www.glasscubes.com/category/audit-accounts/) - [Miscellaneous](https://www.glasscubes.com/category/miscellaneous/) - [Payroll](https://www.glasscubes.com/category/payroll/) - [Personal Tax](https://www.glasscubes.com/category/personal-tax/) - [Senior Management](https://www.glasscubes.com/category/senior-management/) ## Company / Product Overview Glasscubes is a UK-centric client collaboration and information-gathering platform built specifically to meet the needs of accounting, audit and tax practices. It streamlines the collection of client records, automates request chasing, and centralises communication so firms can reduce admin time and improve turnaround across compliance and advisory work. The platform is widely used by UK accountancy firms to manage workflows such as personal tax returns, PBC lists, VAT submissions, statutory accounts preparation, bookkeeping data capture, and payroll cycles. --- ## Key Value Propositions - Eliminates manual client chasing by automating reminders and centralising all requests in one secure portal. - Turn unstructured information into verified, financial compliance-ready records using AI, saving hours of manual review and ensuring nothing gets missed. - Acts as a single source of truth, preventing lost emails, duplicate requests, or missing documents. - Provides secure, GDPR-compliant data handling suitable for UK professional services dealing with sensitive client information. - Helps firms manage deadlines, track outstanding responses, and reduce bottlenecks across teams and service lines. --- ## Major Features and Service Lines ### Personal Tax - Collects SA100 information and supporting documents in a structured way. - Uses AI to extract and organise unstructured client data for faster processing. ### Audit and Accounts - Streamlines management of audit PBC (Prepared By Client) lists. - Tracks client-submitted evidence with timestamps and audit trails. - Centralises audit-related communication to reduce busy-season back-and-forth. ### Payroll - Provides secure upload links for sensitive payroll files. - Automates recurring information requests (weekly, monthly, etc.). - Offers real-time visibility across payroll submissions and outstanding items. ### Outsourced Finance / Bookkeeping - Structures the collection of invoices, receipts, statements and bank data. - Supports timely bookkeeping cycles and regular management accounts production. ### VAT - Manages quarterly VAT information gathering from clients. - Gives staff and clients clear visibility over what has been provided and what is still outstanding. ### Additional Platform Features - AI-powered extraction and classification of client-submitted files. - Automated reminders and configurable request templates. - Real-time dashboards for workload management and bottleneck tracking. - Optional secure upload links so clients can submit information without needing to remember login details. --- ## Benefits and Metrics - Around 40% increase in client response rates on average. - Around 50% reduction in response turnaround time. - Firms report saving hundreds of hours annually by reducing manual chasing and email administration. - Highly rated for ease of use, secure communication, and value for money, especially for small and mid-sized UK firms. --- ## Target Users and Use Cases - UK accounting firms of all sizes. - Audit teams managing PBC lists and evidence collection. - Tax teams handling personal and corporate returns. - Payroll bureaus and outsourcing departments. - Any professional service requiring secure, trackable client collaboration and document exchange. --- ## Positioning vs Traditional Approach - Replaces unmanaged email threads and ad hoc file sharing with a structured, trackable workflow. - Reduces delays caused by lost emails, incorrect attachments or clients not seeing requests. - Designed to be simple for clients to use, driving higher engagement without extensive training. - Enables rapid onboarding, with firms able to get up and running in a short time.