I often get questions about how and where to déclarer ses revenus de valeurs mobilières, especially when the Prélèvement Forfaitaire Unique (PFU, aka the "flat tax") is involved. As someone who writes about analytics and financial topics in a way that’s practical and searchable, I want to walk you through, in clear first-person terms, the concrete steps I follow and recommend when I declare securities income in France — dividends, interest, and certain investment income that fall under case 2TR on the tax return.
Why case 2TR matters to me
When I manage portfolios or write for clients about investment performance, the tax treatment affects net returns and reporting. The PFU (30% total: 12.8% income tax + 17.2% social contributions) changed how many investment incomes are taxed, and the French online return has dedicated boxes — notably case 2TR — to reflect income already subjected to the PFU or to indicate the taxpayer’s choice. Understanding what goes into that case avoids double taxation, errors, and surprises when the tax office calculates what’s still due.
What I gather before filling anything
Before I log into impots.gouv.fr, I collect the following documents — the paperwork you’ll need to properly declare your securities income:
Where I declare these incomes
I always declare securities income on the standard individual tax return (form 2042) when using the online service at impots.gouv.fr. Within the 2042 (or its online equivalent), there are specific fields for income subject to the PFU. In practice I use the section associated with the PFU and, specifically, I check or fill case 2TR when the incomes I received were subject to the flat tax or when I need to report the PFU withholding credit.
Filing online is straightforward: I log into my impots.gouv.fr account, open the income declaration for the relevant year, and go to the "Revenus" section. The interface groups financial incomes — dividends, interest, earnings from life insurance in certain cases — and provides the boxes corresponding to the PFU. If you prefer paper, the same boxes exist on the paper 2042, but online filing is faster and performs checks that reduce simple errors.
How I fill case 2TR and related boxes (practical steps)
Here’s the step-by-step method I use when I arrive at the screens or the page with case 2TR:
Common pitfalls I avoid
Having filled many returns, I’ve learned to watch for these common mistakes:
When I choose the progressive scale instead of the PFU
Sometimes I calculate both options. If my overall taxable income is low, or if I have deductible losses or allowances that reduce my marginal rate, the progressive scale can yield a lower tax bill than the PFU. To opt for this, I tick the relevant box on the 2042 (or online form) which indicates I want dividends and certain incomes taxed under the barème for that year. Remember: this choice is binding for the whole year and must be considered with all investment incomes combined.
Record-keeping and supporting documents I keep
After filing, I keep the following for at least three years (often longer):
Troubleshooting — what I do when something looks wrong
If the tax notice doesn’t match the expectations after I declared securities income, I take these actions:
| Checklist before submission |
| Collect IFUs and bank statements |
| Confirm gross amounts and any withholding |
| Decide PFU or progressive taxation |
| Enter numbers in the correct boxes, including case 2TR |
| Save a copy of the submitted return and store documents |
On a site like SEO Actu where readers care about measurable outcomes, declaring securities income correctly is as much an analytics task as a tax task: collect accurate data, map it to the correct fields (in this case, box 2TR and associated lines), validate with the source documents, and keep a clear audit trail. If you get comfortable with that process, filing becomes a repeatable, low-stress part of managing your investments.