Side Income Tax Filing Copilot
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Automatically turns side income, brokerage activity, crypto trades, and employment tax records into country-specific filing guidance and ready-to-submit tax summaries.
Added May 26, 2026
6 signals
The Problem
People with mixed income streams often do not know when side work, self-employment, stock gains, crypto profits, or payroll tax code changes must be declared. Existing tax systems assume users already understand local rules, forms, timing, and expense categories, leaving them anxious about mistakes and penalties.
Potential Solution
A web app connects to payroll records, bank accounts, brokerages, crypto platforms, and invoicing tools to detect taxable events and classify income by jurisdiction. It generates plain-language obligations, estimated tax owed, deductible expense suggestions, filing reminders, and accountant-ready reports mapped to the correct forms and local tax treatment.
Why Now?
More workers are combining employment with freelance work, platform income, investing, and crypto activity across fragmented financial apps. Tax authorities are also increasing digital reporting and data matching, making proactive compliance more valuable.
Need advice regarding tax and tax codes at my new job
Hi, I’m hoping this is a good place to ask but am needing help/advice on tax. I’ve been self employed for 4/5 years now but recently downsized my business and got an employed job, so will be working both. My new job is a small family business so no HR or payroll, they just use a single accountant to do all their finances. I think i’m currently on an emergency tax code, BR (W1/M1), and from looking online can go to my government gateway account to request that to be changed but nothing is currently showing up on there for my employed job. I’ve only worked there for 2 weeks so do I just need to wait for it to update after another few weeks before doing anything? Or should I give my new employer my P60 from several years ago for them to sort it out? They pay weekly so I’ve had 1 payslip already and been taxed a flat 20% rate which I don’t think is correct as I only earned £90 from my first trial shift, therefore only took home £72. Will be earning roughly £20-22,000 per year with them and £10,000 from my business if that makes any difference. Would just love some clarity on what to do. Also wondering if I’m correct in them paying me as normal and taxing whatever income I make with them, then declaring my employed job, earnings and tax paid when I do my own self assessment and HMRC figure out if I owe any extra tax on top of everything?
Starting a self employed second job - how do I handle tax?
Hi there! This is a genuine ask in good faith, I have done some research but can’t find much to help. Also, everyone else I have asked have given me different answers!! I have recently qualified as a gym instructor and will be working as a self employed contractor in gym. How do I go about declaring this new income? What can be “written off” for tax? And when people say “written off” what does this mean? I’m assuming claiming my VAT back? Some examples of expenses I have had so far are: \- my certification \- gym gear (such as leggings, sports bra, etc - the gym has a certain brand that is worn as uniform but they don’t provide it) \- equipment (special shoes & cleats are required on the gym bikes) I also will be continuing to work my 9-5, so unsure how this additional income and having to declare it will impact my total take home pay at the end of the day. Any advice would be appreciated. If someone already has a thread here explaining how a self employed second job affects you tax wise, please link it below. Thanks!
Revolut + crypto in regime dichiarativo: conviene dichiarare subito o aspettare eventuale accertamento?
Ciao a tutti, scrivo perché su questo tema sto trovando opinioni molto diverse e vorrei un confronto. Nel 2025 ho iniziato a investire tramite Revolut, che è in regime dichiarativo. Non fornisce un modello fiscale vero e proprio, ma solo un report con tutte le operazioni (acquisti, vendite, profitti e perdite). Nel mio caso ho investito circa 2.200€, ho fatto un rendimento di circa +25% in pochi mesi e poi ho chiuso tutte le posizioni liquidando tutto. Parallelamente ho fatto anche operazioni in crypto, circa 20–30 transazioni totali, con acquisti frazionati (anche piccoli importi tipo 50€ ripetuti su varie crypto), e anche in questo caso ho chiuso tutto, con alcune plusvalenze e minusvalenze. Quello che non mi è chiaro è se, considerando importi relativamente bassi e una situazione comunque non complessa a livello di capitale totale, abbia più senso procedere subito con la dichiarazione tramite CAF o commercialista (e quindi sistemare tutto pagando il dovuto), oppure se nella pratica convenga semplicemente aspettare un eventuale accertamento dell’Agenzia delle Entrate e regolarizzare solo in quel caso, considerando anche che eventuali sanzioni e interessi non sarebbero enormi rispetto alle somme in gioco.
How to report T4A when using accrual option on T2125
Hey folks, While I am looking for a new accountant, I am trying to understand how to report T4A sum when using accrual basis on T2125 form. I am teaching the course and initially, they planned to go with “I issue invoice and they pay that invoice”. They just got back to me saying that they would rather go with T4A option. I am trying to understand how to report that the next year (2027) because I would be reporting more than what T4A will show (there is 3 month delay after course ends and I get paid). And in 2 years (tax year 2028), I potentially might not report anything while I would still get T4A with a large amount of money. I don’t think I can go with cash option. Just wondering how folks tackle this.
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